Sport climbing is about performance. Always warm up. Injuries often result from pushing too hard too soon. Study a topo, look at the route from the ground and try to sort out where you can get a good rest. Don’t over-grip, hang with straight arms and remember to use your legs. Learning how to control your pump will improve your sending potential. Focus on keeping your body close to the wall, maintaining three points of contact and moving in a controlled way. Watch other climbers move and try to learn their tricks. Find a project and repeat the crux in your local gym to dial it. Climbing is not all about the grade, but if your goal is to improve your grade then focus on performance.